US3577319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large scale cultivation of bordetella pertussis cells for vaccine production
Assignee: Wyeth Holdings LLC
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Filing: 1968-05-27
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Granted: 1971-05-04
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Expires: 1988-05-27
Abstract
Abstract A BORDETELLA PERTUSSIS VACCINE IS PREPARED BY DEEP TANK CULTIVATION USING A SEED GROWN IN A GIPHASIC CULTURE SYSTEM. THE PROCESS ELIMINATES CULITVATION ON A BLOOD-FREE SEED AGAR, REDUCES THE NUMBER OF CONTAINERS, AND RESULTS IN INCREASED ANTIGENICITY OF THE PHASE I BORDETELLA PERTUSSIS VACCINE.
Inventors
- 👤 Peter Adams Nielsen
- 👤 Murray Sam Cooper
- 👤 Ernest Robert Doyno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/02; A61K39/099; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |